Aren't they already able to be open? I don't get how 'gay' didn't just include 'everyone who's not straight'.
But the issue with things like bathrooms and clothing - What is it about this that people get all in a tizzy over. It has nothing to do with social norms and gender.
Penis? Use a urinal.
Vagina? Use a toilet so you can do things like change your maxi pad and sit to pee.
Breasts? Wear clothing that's tailored to fit - not like there's a difference between a man's uniform and a women's uniform save for the design to fit body-shape differences. (ie: women in the military don't wear skirts).
Don't like it?
Go start a fashion company and get the **** out of the military, whiny baby.
It's not very complicated yet people really seem determine to make it ****ing complicated.